Portion of a front face of headgear for respiratory mask



FIG. 1 is a front view of a portion of a front face for headgear for respiratory mask according to our design.

Where included, broken lines showing environment or structure are for illustrative purposes only and form no part of the claimed design. Where included, dotted lines represent the border between claimed and non-claimed subject matter and form no part of the claimed design. 

The ornamental design for a portion of a front face of headgear for respiratory mask, as shown and described. 